Draft arm for soda fountains



Dec. 1, 925 1,563,372

7 J. KANTOR- 1mm ARM FOR SODA FOUNTAINS Filed Sept-20 1922 ZSheets-Sheetl Fi Fig.2

' INVEINTOR.

B W, M; ATTORNEYS.

Dec. 1, 1925 1,563,372

J. KANTOR DRAFT ARM FOR SODA FOUNTAINS Filed Sepfc. 20 1922 2Sheets-Sheet 2 INVENTOR.

Patented Dec. 1, 1925.

UNlTED STATES JAMES KANTOR, OF CHICAGO, ILLINOIS.

DRAFT ARM FOR SGDA FOUNTATNS.

Application filed September 20, 1922. Serial No. 589,330.

To all whom it may concern:

Be it known that I, JAMES KAN'I'OR, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Draft Arms for SodaFountains, of which the following is a specification.

Provision must be made in the form of draft arm to which my inventionrelates, for the discharge, at the will of the operator, of either arelatively large stream of charged water to provide the desired volumein the glass or of a relatively fine stream at high velocity, which iscommonly employed after substantially the required volume of liquid hasbeen discharged for the purpose of mixing the contents of the glass orother receptacle being filled. In the constructions oon1- monly employedthe head of the draft arm is provided with a pair of passages, one ofwhich conveys the larger stream and the other the finer stream, therespective passages being controlled by separate valves operated by acommon handle. The valves sooner or later become leaky and there is aconsequent drip from the nozzle which is obviously unsightly andotherwise objectionable. It is difficult to get at the valves and repairthem to prevent this leakage and furthermore it is difficult orimpossible to determine which ofthe two valves is at fault, since theleakage from either drips from the same opening. It is the objectof myinvention to improve upon the constructions of the prior art in thisrespect and to provide a draft arm which is simple in construction, isnot liable to get out of order and which may be readily repaired in caseof leak. It is a further purpose of this invention to provide such aconstruction in which drip is entirely prevented between successiveoperations of the device. Further objects and advantages of theinvention will appear from the following description. It is to beunderstood, however, that the purpose of the specific disclosure is forthe exemplification of invention only and that the scope of theinvention is defined in the appended claims in which I have endeavoredto distinguish it from prior art without, however, relinquishing orabandoning any novel feature thereof.

Referring to the drawings accompanying and forming a part of thespecification, Fig. l is a front elevation partly in vertical section ofa draft arm embodying my invention, Fig. 2 a side elevation partly invertical section on a plane perpendicular to that of Fig. 1; Fig. 3 avertical section partly 1n elevation; Fig. 4 a vertical section on theline 4-4 of Fig. 3 and Fig. 5 a top plan view of the improved draft armwith certain parts removed.

The draft arm head comprises a main casting 6 tapped at 9 for thereception of the usual goose-neck, and provided with a threaded end 7 toreceive the nozzle 8. The head 6 is formed with a passage 10 for thecoarse stream and a separate passage 11 for the fine stream. The lattercommunicates with the bore of a plug 12 which is screwed at 13 into thehead 6. The bore of the plug is reduced in diameter at 14. The upperends of the respective channels 10, 11, communicate with a horizontalchamber 15 in which is revolubly mounted a turning plug which controlsthe channels 10 and 11, and also serves as a valve operating device aswill presently appear.

The head 6 is formed with a cylindrical valve chamber 17 above chamber15 which communicates by passage 18 with the cavity 9 which receives thegoose-neck and also through a passage 19 with the horizontal chambercontaining the turning plug. A valve seat 20 is formed about the upperend. of the passage 19 and a valve 21 cooperates with said seat tocontrol the passage between the goose-neck and the transverse bore 15.

The said valve preferably comprises the valve body proper and a washer22 of leather or other suitable material which is held in position inthe valve body by the screw 23. The upper end of the valve cavity isclosed by a cap 24 screwed into the head and a light spring 25 iscompressed between said screw cap and the valve and serves to return thelatter to its seat. The valve cavity 17 is preferably cylindrical orsubstantially so and the valve body 21 may be hexagonal to providepassages for the liquid about the same. As best seen in Fig. 3 thepassage 19 is generally cylindrical and contains a ball 26 which ismovable vertically in said passage. To provide for the free passage ofliquid past the ball the walls of the passage 19 are channelled as at26, see Fig. 5.

The turning plug or shaft 16 is flattened orout-away at 27, see Fig. 4,the cut-away portion being uppermost and normally horizontal as shown inthe figure. The ball 26 rests upon this flattened portion and normallyis out of contact with the valve. Nhen the plug is rotated, however, theplug exerts a cam action on the ball to raise the same against the valveand to raise the latter from its seat. There is then open communicationbetween the bore 15 containing the turning plug and the inlet passage ofthe goose-arm. It will be observed that the passages l and 11communicate with bore 15 on opposite sides respectively of the plug andabove the center of the latter. The flattened portion of the plug is ofsuch extent that when the latter is revolved in the one direction it notonly raises the ball but affords communication between the passage 19and the passage 10, and when the plug is re volved in the oppositedirect on it raises the ball and valve and affords communication betweenthe passage 19 and passage 11. Thus the plug serves the double pr "poseof opening the single valve which controls the flow of liquid anddirecting the liquid to either the large passage for the coarse streamor the passage for the f ner stream, accordingly as the plug is swung inthe one direction or the other.

In the particular exemplification of the invention shown in thedrawings-the plug or shaft seats at its end against the flat end 3 ofbore 15 and at its opposite end is formed with a reduced portion 31 towhich the handle 32 is attached. Preferably the reduced portion 31 isflattened on one side at 32 and the end 33 of the handle yoke is formedwith a similarly shaped opening so hat the handle is in effect keyed'tothe plug. The opposite end 34 of the yoke is journaled upon a screwwhich is tapped into the head at 36. The head 6 is formed with a rabbct37 at the open end of the cavity 15, which receives a leather or otherelastic washer 3S and a metal washer 39 about the stem or reducedportion of the plug for the purpose of preventing leakage at this point.

Provision is made for returning the handle to nor nal, central position,as shown in Fi 2, when released from either valve open- .ing position.For this purpose the stem of the turning plug is provided with a radialarm 40 which is preferably an integral part of a collar 41 which latter,as seen in Fig. 2, is formed with an opening to fit over the reduced.partially flattened stem of the turn-' ing plug so that the arm is keyedto and turns with the latter. The outer end of the arm 40 is turnedinward at 41 for a purpose which .will appear. lVhen the handle is innormal position the arm depends vertically and its lower end is inradial alignment with a pin 43 projecting from the side of the head. Aspring 44 is formed with a couple of coils about the stem of the plugand its ends 45, bent substantially radially as best seen in Fig. 2, toextend respcctively on opposite sides of the inwardly turned end 41 ofarm 40 and stationary pin 43. The tension of the spring is such as totend to move the ends thereof towards each other and consequently tohold the arm 40 in the vertical position shown in Fig. 2. Obviously whenthe handle is moved in either direction from normal the inwardly turnedend 41 of arm 40 carries one end of the spring with it and the other endof the spring bearing against the pin 43, the spring resists themovement of the handle from normal position and tends to return itthereto.

Preferably the spring serves the additional function of exerting aspring pressure upon the washer 39 thus compressing the packing washer38 and preventing leakage between the plug and the head. Stop pins 59limit the movement of the handle.

To enhance the appearance of the head and conceal the spring, etc., apair of circular cheek pieces 46 are mounted on the respective oppositesides of the head and between the latter and the eye portions 3334 ofthe handle yoke. The cheek pieces are bored at 47, 48 to receive screw35'and plug stem 31 respectively.

As heretofore stated the plug 12 having the constricted passage 14 forthe fine stream of soda is tapped into the head so that the bore thereofregisters with the passage 11. The undcrface of the lower end of thehead is machined and ground smooth to act as a seat for the valve 48,the upper face of which is concave as best seen in Figs. 3 and 4. Alight spring 49 is interposed between said valve and a shoulder 50 onthe plug and normally maintains the valve inraisedclosed position.Though the strength of the spring is sufficient to normally hold thevalve seated, in which position it will be observed it closes the lowerend of passage 10 and prevents dripping from the latter, it readilyyields when the valve and turning plug permit the charged water to flowthrough said passage and exert its pressure on the valve. The valvemoreover forms a battle to check the direct violent discharge of thecarbonated water from the head but permits it to overflow gently intothe glass or other container being filled.

In external appearance and manipulation my improved draft arm issubstantially like the draft arms in common use. It is superior thereto,however, in preventing leakage and dripping and in the ease andcertainty with which it can be restored to drip proof condition when dueto use or wear a drip develops. hen the arm is not in use the onlypacked oint holding back the charged water under pressure is the valve21 which is held to itsseat not only by the spring 25 but by thepressure of the carbonated water belBO hind it. In case the washer 22becomes worn, the only way in which dripping can be set up, it mayreadily be replaced by removing the screw cap 24 to provide access tothe valve. The only other packed joint, to wit, which comprises thewasher 39, is not subjected to liquid pressure except when the valve isopen and then the pressure is relatively slight because one of theoutlet passages from the turning plug chamber is open to the atmosphere.

I claim:

1. In a device of the class described a head having a chamber therein, apair of passages opening from opposite sides of said chamberrespectively, a supply passage communicating with said chamber, thethree passages being arranged intermediate the ends of the chamber, aturning plug in the chamber having a cut-away portion adapted to placeeither of the first mentioned passages in communication with the supplypassage and a valve in the supply passage normally closed but opened bythe turning plug when the latter is turned to place the supply passagein communication with either of the other of said passages.

2. In a device of the class described a head having a substantiallycylindrical chamber therein, a pair of outlet passages communieatingwith said chamber on opposite sides thereof respectively, a supplypassage communicating with said chamber through the cylindrical wallthereof, a turning plug having a channel adapted to put said supplypassage in communication with either of said outlet passages, a checkvalve in the supply passage opening away from said chamber and meansintermediate the turning plug and said check valve for operating thelatter when the turning plug is turned to place the supply passage incommunication with either of said outlet passages.

3. In a device of the class, described, a head having a chamber and apair of passages communicating with opposite sides of said chamberformed therein, a supply passage intermediate the passages of said paircommunicating with said chamber, a valve controlling the supply passage,a turning plug in the chamber adapted to connect the supply passage witheither of the first-mom tione-d passages and formed with a cam portionand means intermediate the turning plug and valve for opening the latterwhen the turning plug is turned to afford connection with either of saidpassages.

4:. In a device of the class described, a head having a transverse boreand a pair of passages opening into said bore on opposite sides thereof,a supply passage communicating with said bore intermediate thefirstnamed passages, a reciprocating valve controlling said supplypassage, a turning plug in the bore having a cut-away portion adaptedwhen turned in one direction to put the supply passage intocommunication with one of the first-named passages and when turned inthe other direction to put the supply passage into communication withthe other of the first-named passages, a reciprocating valve controllingthe supply passage and means intermediate the cut away portion of theplug and valve for opening the latter when the plug is turned fromnormal position.

5. In a device of the class described, a head having a transverse.cylindrical chamber therein and a pair of passages communicating withsaid chamber on opposite sides thereof, a valve chamber, a supplypassage intermediate said valve chamber and the firstanentioned chamber,passage for supplying the valve chamber with liquid, a valve in thevalve chamber controlling said suppl passage, a plug in thefirst-mentioned chamber having a cut-away portion whereby when the plugis turned in one direction from normal the supply passage is put incommunication with one of the firstmentioned passages and when the plugis turned in the other direction the supply passage is put in connectionwith the other of the first-named passages, a ball in the supply passageand in contact with an eccentric portion out said plug whereby when theplug is turned the ball is forced against the valve to open the latter.

6. In a device of the class described, a head having a transverse boreand a coarse stream and a fine stream passage communieating with thebore on opposite sides thereof, said head being formed with a valvechamber above said bore, a passage connecting said valve chamber andbore and a passage for supplying liquid to said valve chamber, a valvein said valve chamber controlling the passage between the same and thetransverse bore, a cap closing said valve chamber, a spring intermediatethe cap and valve, a turning plug in the transverse bore having acutaway portion adapted when the plug is turned in either direction fromnormal to form a connection between the supply passage and the coarse orthe fine stream passage, a ball in the passage connecting the valvechamber with the transverse bore resting upon the cutaway portion or"the turning plug and adapted when the latter is turned in eitherdirection from no mail to be forced into contact with and raise thevalve and a handle for operating the turning plug.

7. In a device of the class described, a head having a pair of liquidconducting passages opening through the under-face thereof, a valve anda light spring normally forcing the. valve upwarc against said face toclose one of said passages.

S. In a device of the class described, a head having a pair of passagesopening through the lower face thereof, a plug having a central borecommunicating with one of said passages, a valve mounted to slide onsaid plug and to close against the face of the head to cut oil the othersaid passage and a light spring normally holding the valve in itsuppermost position.

9. In a device of the class described, a head having a. pair of passagestherethrough opening through the lower face thereof, means forcontrolling the flow of liquid through said passages, a plug in saidface having a passage con'ununicating with one of said passages, acupped valve vertically reciprocahle upon said plug and normally closingthe other passage and a light spring normally holding the valve inraised position.

10. In a device'of the class described, a head, a transverse bore in thehead, a turning plug in the bore, outlet passages controlled by theturning plug, a handle for operating the turning plug and means forreturning the handle to intermediate position when displaced to eitherside thereof comprising an arm on the turning plug, a pin on said headand a spring coiled about said turning plug and having its respectiveopposite ends on opposite sides of said pin and arm.

JAMES KANTOR.

